Doxycycline is a tetracycline antibiotic that fights bacteria in the body. Doxycycline is used to treat many different bacterial infections, such as acne, urinary tract infectionsintestinal infections, respiratory infections, eye infections, gonorrheachlamydiasyphilis, periodontitis gum diseaseand others.
Doxycycline is also used to treat blemishes, bumps, and acne-like lesions caused by rosacea. It will not treat facial redness caused by rosacea. Some forms of doxycycline are used to prevent malaria, to treat anthrax, or to treat infections caused by mites, ticks, or lice. Children younger than 8 years old should use doxycycline only in cases of severe or life-threatening conditions.
This medicine can cause permanent yellowing or graying of the teeth in children. Using doxycycline during pregnancy could harm the unborn baby or cause permanent tooth discoloration later in the baby's life.
You should not take this medicine if you are allergic to doxycycline or other tetracycline antibiotics such as demeclocycline, minocycline, tetracycline, or tigecycline. If you are using doxycycline to treat chlamydia, your doctor may test you to make sure you do not also have gonorrhea, another sexually transmitted disease.
Taking this medicine during pregnancy may affect tooth and bone development in the unborn baby. Taking doxycycline during the last half of pregnancy can cause permanent tooth discoloration later in the baby's life. Tell your doctor if you are pregnant or if you become pregnant while using this medicine. Doxycycline can make birth control pills less effective.
Ask your doctor about using a non-hormonal birth control condom, diaphragm with spermicide to prevent pregnancy. Doxycycline can pass into breast milk and may affect bone and tooth development in a nursing infant.
The extent of absorption is unknown. Do not breastfeed while you are taking this medicine. Children should not use this medicine. Doxycycline can cause permanent yellowing or graying of the teeth in children younger than 8 years old. Children should use doxycycline only in cases of severe or life-threatening conditions such as anthrax or Rocky Mountain spotted fever.
The benefit of treating a serious condition may outweigh any risks to the child's tooth development. Take doxycycline exactly as prescribed by your doctor. Follow all directions on your prescription label. Do not take this medicine in larger or smaller amounts or for longer than recommended.
Take doxycycline with a full glass of water. Drink plenty of liquids while you are taking this medicine. Most brands of doxycyline may be taken with food or milk if the medicine upsets your stomach. Different brands of doxycycline may have different instructions about taking them with or without food.
You may open a regular capsule or break up a regular tablet and sprinkle the medicine into a spoonful of applesauce to make swallowing easier. Swallow right away without chewing. Do not save the mixture for later use. Drink a full glass 8 ounces of cool water right away.
You may need to split a doxycycline tablet to get the correct dose. Follow your doctor's instructions. Measure liquid medicine with the dosing syringe provided, or with a special dose-measuring spoon or medicine cup.
If you do not have a dose-measuring device, ask your pharmacist for one. If you take doxycycline to prevent malaria: Start taking the medicine 1 or 2 days before entering an area where malaria is common. Continue taking the medicine every day during your stay and for at least 4 weeks after you leave the area.Doxycycline is in a class of medications called tetracyclines, and it's a broad-spectrum antibiotic, which means it works against a wide range of bacteria.
Doctors prescribe doxycycline to prevent malaria and treat a wide range of infections, including:. Like all antibioticsdoxycycline will not treat colds, the fluor other infections caused by viruses or fungi.
A study found that a low dose of 40 milligrams mg of slow-release doxycycline daily could be an effective and safe therapy for ocular rosacea, or rosacea that affects the eyes. The drug company Pfizer developed doxycycline in the early s, and the Food and Drug Administration FDA approved the drug in under the brand name Vibramycin. It's sometimes used as an alternative to another acne drug with more side effects, minocycline.
However, a study published in found that people with acne who used an antibiotic-free facial gel had greatly improved acne, according to MedPage Today. You should take this medication only to treat bacterial infections, and it's important to take it exactly as your doctor prescribes.
Using doxycycline or other antibiotics incorrectly or using them to treat infections caused by other types of germs, such as viruses, contributes to the development of drug-resistant bacteria. Every time you take an antibiotic, it kills the sensitive bacteria. Resistant germs, however, can grow and multiply, and then surviving bacteria can become resistant.
It's also important to understand that taking antibiotics, including doxycycline, alters the normal balance of bacteria in your body. In addition to killing harmful bacteria, the medication can also reduce the amount of good bacteria that help keep other germs in check. As a result, some people taking doxycycline develop yeast infections and antibiotic-related diarrhea.
Taking doxycycline could make oral birth control pills less effective. If you are on oral contraceptives, you should use other forms of birth control while you take this antibiotic. Before taking doxycycline, let your doctor know if you're going to have any kind of surgery, including dental surgery.
Also tell your doctor if you have diabetes. Taking doxycycline can interfere with tests for sugar in the urine. Tetracyclines, including doxycycline, also pass into breast milk, so women who are breastfeeding should not take this drug. If you're a woman, let your doctor know if you are pregnant, plan to become pregnant, or are breastfeeding. It's also important to note that unborn babies exposed to doxycycline or children younger than 8 years old who take the drug may have permanently stained teeth.
Children younger than 8 should not take doxycycline except as treatment for inhalational anthrax or if a doctor decides it's necessary. Doxycycline may be prescribed to treat several bacterial infections, such as leptospirosis, urinary tract infections UTItoxoplasmosiserlichiosis, or mycoplasma. It's also used to treat tick-borne diseases, including Lyme disease and Rocky Mountain spotted fever. Because doxycycline can cause severe side effects in dogs and cats such as nausea and diarrheait should be used only under the care and direction of a veterinarian.
Certain drugs may affect the way doxycycline works. This antibiotic could also interact with other medications. It's very important to let your doctor know about everything you're taking, including street drugs as well as any over-the-counter OTC medications, herbs, or supplements.People treated with appropriate antibiotics in the early stages of Lyme disease usually recover rapidly and completely.
Antibiotics commonly used for oral treatment include doxycycline, amoxicillin, or cefuroxime axetil. People with certain neurological or cardiac forms of illness may require intravenous treatment with antibiotics such as ceftriaxone or penicillin. Treatment regimens listed in the following table are for localized early Lyme disease.
See references below Hu ; Sanchez for treatment of patients with disseminated late Lyme disease. NOTE: For people intolerant of amoxicillin, doxycycline, and cefuroxime axetil, the macrolides azithromycin, clarithromycin, or erythromycin may be used, although they have a lower efficacy.
People treated with macrolides should be closely monitored to ensure that symptoms resolve. The National Institutes of Health NIH has funded several studies on the treatment of Lyme disease that show most people recover when treated within a few weeks of antibiotics taken by mouth.
In a small percentage of cases, symptoms such as fatigue being tired and muscle aches can last for more than 6 months. Skip directly to site content Skip directly to page options Skip directly to A-Z link. Lyme Disease. Section Navigation. Minus Related Pages. Treatment regimens for localized early Lyme disease. Links with this icon indicate that you are leaving the CDC website. Linking to a non-federal website does not constitute an endorsement by CDC or any of its employees of the sponsors or the information and products presented on the website.
Cancel Continue.Doxycycline is an antibiotic that can treat various bacterial infections. People can use oral or injectable forms. Sometimes, doctors use doxycycline to treat lung, nose, and throat infections. People can also use doxycycline to treat acne and rosacea. Doxycycline may not be appropriate for everyone. It may interact with some other drugs and can cause side effects.
Doctors will use caution when prescribing doxycycline to children and pregnant women. In this article, we look at the many uses of doxycycline. We also discuss the side effects and warnings for people taking doxycycline. Doxycycline is an antibiotic in the tetracycline class. Doctors prescribe doxycycline for various bacterial infections such as :. Many bacteria have developed a resistance to doxycycline. When doctors want to prescribe doxycycline, they can test the bacteria to make sure it will respond to the treatment.
If the benefits outweigh the risks, doctors can prescribe doxycycline to children 8 years old or younger who have severe or life threatening infections. Oracea is the brand name of the doxycycline product doctors use to treat rosacea lesions in adults.
Doxycycline is available in seven different formulations. The following table lists the various forms and their strengths in milligrams mgor milligrams per 5 milliliters mg per 5 ml. This coating is resistant to acid and delays the release of doxycycline by 15—20 minutes. Doctors will recommend taking doxycycline with a full glass of water to prevent it from irritating the esophagus, which is the tube that connects the stomach and the mouth.
If someone has irritation in their esophagus, they can take doxycycline with food or milk.Our free DiscountRx savings card can help you and your family save money on your prescriptions. This card is accepted at all major chain pharmacies, nationwide. Enter your name and email address to receive your free savings card.
Sign In Site Map. Antibiotics Channel. Cefuroxime Axetil. Ciprofloxacin Ophthalmic. Doxycycline Hyclate. Moxifloxacin Eye Drops. Ofloxacin Ophthalmic Solution. Ofloxacin Otic Solution. Your doxycycline dosage is based on factors like your age, what you are being treated for, and other medications you are taking. For example, the recommended dose for most bacterial infections is mg to mg a day. For malaria prevention, a dosage of doxycycline mg a day for adults and 2 mg per kilogram of body weight for children is typically prescribed.
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An Overview of Your Doxycycline Dosage. The dose of doxycycline your healthcare provider prescribes will vary, depending on a number of factors, including:. As is always the case, do not adjust your dose unless your healthcare provider specifically instructs you to do so.
The recommended doxycycline dosage for most types of bacterial infections in adults is mg to mg per day for 7 to 14 days. For chronic long-term or more serious infections, treatment can be carried out for a longer time. In children ages eight or older, your healthcare provider will prescribe a doxycycline dosage based on a weight chart, usually about 1 to 2 mg per pound of body weight per day.
The dose is divided and taken for 7 to 14 days. Children should generally be limited to mg or less of doxycycline per day. The recommended dose of doxycycline for preventing malaria is mg daily for adults. For children, the dosage is 2 mg per kilogram of body weight about 0. Treatment should begin a day or two prior to travel, be taken with you throughout your stay in the area of concern, and continued for 28 days after you have left the noted area. Usage should not exceed four months.
List of references click here Doryx [package insert]. Atridox [package insert]. Oracea [package insert]. Periostat [package insert].
Vibramycin [package insert]. Last reviewed by: Kristi MonsonPharmD.Drug information provided by: IBM Micromedex. Take this medicine exactly as directed by your doctor.
What to know about doxycycline
Do not take more of it, do not take it more often, and do not take it for a longer time than your doctor ordered. To do so may increase the chance of side effects. This medicine comes with patient instructions. Read and follow the instructions carefully.
Ask your doctor if you have any questions. Swallow the capsule whole. Do not break, crush, chew, or open it. Shake the oral liquid well just before each use. Measure the dose with a marked measuring spoon, oral syringe, or medicine cup. If you are using this medicine to prevent malaria while traveling, start taking the medicine 1 or 2 days before you travel.
Take the medicine every day during your trip and continue taking it for 4 weeks after you return. However, do not use the medicine for longer than 4 months.
Use only the brand of this medicine that your doctor prescribed. Different brands may not work the same way.
To help clear up your infection completely, keep taking this medicine for the full time of treatment, even if you begin to feel better after a few days.
If you stop taking this medicine too soon, your symptoms may return. The dose of this medicine will be different for different patients. Follow your doctor's orders or the directions on the label. The following information includes only the average doses of this medicine. If your dose is different, do not change it unless your doctor tells you to do so. The amount of medicine that you take depends on the strength of the medicine. Also, the number of doses you take each day, the time allowed between doses, and the length of time you take the medicine depend on the medical problem for which you are using the medicine.
If you miss a dose of this medicine, take it as soon as possible. However, if it is almost time for your next dose, skip the missed dose and go back to your regular dosing schedule. Do not double doses. Store the medicine in a closed container at room temperature, away from heat, moisture, and direct light.
Doxycycline For Dogs
This site complies with the HONcode standard for trustworthy health information: verify here. This content does not have an English version. This content does not have an Arabic version. Make an appointment. Visit now. Explore now.Medically reviewed by Drugs. Last updated on Jan 1, Doxycycline is a broad-spectrum antibacterial synthetically derived from oxytetracycline. Doxycycline capsules USP, 75 mg, and mg contain Doxycycline monohydrate equivalent to 75 mg, and mg of Doxycycline for oral administration.
Doxycycline has a high degree of lipid solubility and a low affinity for calcium binding. It is highly stable in normal human serum. Doxycycline will not degrade into an epianhydro form. The capsules are printed with edible ink containing shellac, titanium dioxide, black iron oxide, brown iron oxide and potassium hydroxide for 75 mg and mg strengths. Tetracyclines are readily absorbed and are bound to plasma proteins in varying degrees.
They are concentrated by the liver in the bile and excreted in the urine and feces at high concentrations in a biologically active form. Doxycycline is virtually completely absorbed after oral administration. Following a mg dose of Doxycycline monohydrate, 24 normal adult volunteers averaged the following serum concentration values:.Doxycycline for the Prevention of Bacterial Sexually Transmitted Infections
Studies have shown no significant difference in serum half-life of Doxycycline range 18 to 22 hours in individuals with normal and severely impaired renal function. Doxycycline inhibits bacterial protein synthesis by binding to the 30S ribosomal subunit. Doxycycline has bacteriostatic activity against a broad range of Gram-positive and Gram-negative bacteria.
Anaerobic Bacteria Clostridium species Fusobacterium fusiforme Propionibacterium acnes. Other Bacteria Nocardiae and other Actinomyces species Borrelia recurrentis Chlamydophila psittaci Chlamydia trachomatis Mycoplasma pneumoniae Rickettsiae Treponema pallidum Treponema pallidum subspecies pertenue Ureaplasma urealyticum.
Parasites Balantidium coli Entamoeba species. These reports should aid the physician in selecting the most effective antimicrobial. Quantitative methods are used to determine antimicrobial minimum inhibitory concentrations MICs. These MICs provide estimates of the susceptibility of bacteria to antimicrobial compounds.
Quantitative methods that require measurement of zone diameters can also provide reproducible estimates of the susceptibility of bacteria to antimicrobial compounds. The zone size should be determined using a standardized test method. The disk diffusion interpretive criteria are provided in Table 1. For anaerobic bacteria, the susceptibility to Doxycycline can be determined by a standardized test method. A report of Susceptible S indicates that the antimicrobial is likely to inhibit growth of the microorganism if the antimicrobial drug reaches the concentration usually achievable at the site of infection.
A report of Intermediate I indicates that the result should be considered equivocal, and, if the microorganism is not fully susceptible to alternative, clinically feasible drugs, the test should be repeated. This category implies possible clinical applicability in body sites where the drug product is physiologically concentrated or in situations where high dosage of drug can be used. This category also provides a buffer zone that prevents small uncontrolled technical factors from causing major discrepancies in interpretation.
A report of Resistant R indicates that the antimicrobial drug is not likely to inhibit growth of the microorganism if the antimicrobial drug reaches the concentrations usually achievable at the infection site; other therapy should be selected. Standardized susceptibility test procedures require the use of laboratory controls to monitor and ensure the accuracy and precision of the supplies and reagents used in the assay, and the techniques of the individuals performing the test.
For the diffusion technique using the 30 mcg Doxycycline disk or 30 mcg tetracycline disk, the criteria noted in Table 2 should be achieved. To reduce the development of drug-resistant bacteria and maintain effectiveness of Doxycycline capsules, USP and other antibacterial drugs, Doxycycline capsules, USP should be used only to treat or prevent infections that are proven or strongly suspected to be caused by susceptible bacteria.